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<head>
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	<title>布局</title>
	<style type="text/css">
		*{
			margin: 0px;
			padding: 0px;
		}
		.box{
			/*display: inline-block;*/
			width: 500px;
			height: 160px;
			border: 10px solid red;
			/*background: #fff url() 0 0 no-repeat;*/
			/*background: red url() 0 0 no-repeat;*/
			padding: 20px;
			/*margin: 20px;*/
		}
		.box1{
			margin: 30px;
		}
		.son{
			width: 100px;
			height: 50px;
			background: red url() 0 0 no-repeat;
			margin: 0px auto;
			overflow: auto;
		}

	</style>
</head>
<body>

	<div class="box">
		<div class="son">
			学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思学并思
		</div>
	</div>
	<div class="box box1">
		学并思
	</div>
</body>
</html>